40857518 has 16 divisors (see below), whose sum is σ = 66933216. Its totient is φ = 18590880.

The previous prime is 40857517. The next prime is 40857547. The reversal of 40857518 is 81575804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40857517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9221 + ... + 12912.

It is an arithmetic number, because the mean of its divisors is an integer number (4183326).

Almost surely, 2^40857518 is an apocalyptic number.

40857518 is a deficient number, since it is larger than the sum of its proper divisors (26075698).

40857518 is a wasteful number, since it uses less digits than its factorization.

40857518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22219.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 40857518 is about 6391.9885794641. The cubic root of 40857518 is about 344.4218223166.

The spelling of 40857518 in words is "forty million, eight hundred fifty-seven thousand, five hundred eighteen".